I was planning to apply for a mortgage loan in January. My credit score is over 800, and my income won't be an issue for the amount of house I want. All my credit cards are completely paid off, my car is paid off, zero blemishes on my report, etc.
But... I was also planning on applying for credit limit increases from AMEX and NFCU. NFCU is also who I plan on getting the mortgage from. So the question is, let's say NFCU gives me a huge CLI, will that then affect my chances of getting a mortgage loan from them (since they just put a new amount of risk into me already)?
In my opinion I really do not see an issue based on what you have stated.
But on the other hand if no issues with your credit and or income for home purchase, I would opt for applying for home first. Once close then apply for CLI on cards. Your home mortgage most likely will not show on your credit reports for a few months after closing.